South Wales Police say a male driver of Ford Focus died in a crash on the eastbound carriageway of the M4 today.
The stretch between junctions 45 Ynysforgan and 44 Birchgrove was closed for around five hours.
An accident between Junction 44 and 45 on the M4 has seen the eastbound carriageway close.
The incident - described as 'serious' by police - happened at around 7.43am on Sunday.
Diversions are currently in place.
Rain clipping the far north through the evening but elsewhere staying dry with some sunny spells.
Public Health Wales figures show 25 more cases of the virus have also been confirmed.
Photos taken on Saturday morning show Roald Dahl Plass strewn with empty beer bottles and discarded canisters of laughing gas.